The feature grid below shows the differences between the different NuSEO.PHP Licenses.

Features	Standard	Standard + Source	Professional	Professional + Source	Enterprise
Domains The total number of domains allowed.	1	1	2	2	3
Copyright Notice Requires the display of NuSEO.PHP's copyright notice at the end of all pages.	Required	Required	Branding Free	Branding Free	Branding Free
100% PHP Source Code Is 100% of the PHP Source Code included?	No	Yes	No	Yes	Yes
Modules' Source Code Is the PHP Source Code for all modules included?	Yes	Yes	Yes	Yes	Yes
IonCube Required? IonCube loaders are required for licenses which do not include 100% Source Code.	Required	Not Required	Required	Not Required	Not Required
10+ Modules Included For a list of supported modules, please refer to NuSEO.PHP Modules Information	10+	10+	10+	10+	10+
Static URLs Support for Static Keyword Rich URLs?	Yes	Yes	Yes	Yes	Yes
Dynamic Meta Tags Support for Dynamic, content based meta tags?	Yes	Yes	Yes	Yes	Yes
High Traffic Optimizer The High Traffic Optimizer is intended for high traffic sites with a large number of concurrent users.	No	No	No	No	Yes
Memcached Support Supports Memcached servers or server farms?	No	No	No	No	Yes
APC Support Supports Alternative PHP Cache (APC) shared memory acceleration?	No	No	No	No	Yes
eAccelerator Support Supports eAccelerator shared memory acceleration?	No	No	No	No	Yes
Price	$100 USD	$160 USD	$180 USD	$240 USD	$300 USD

Testimonials

I run an automotive forum, and for a while had been suffering the problem of new members asking old questions. The idea of a wiki to maintain an FAQ had crossed my mind, but only when I saw vbwiki pro did I bother to do it. It's really working on the site (both the concept and the software), so thank you. -- Pottsy (Civinfo)